Hot-air furnace.



G. H. HESS.

HOT AIR FURNACE.

APPLICATION FlLED FEB. 10, I917.

Patented Aug. 7,1917.

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I l I I 1 I G. H. HESS.

HOT AIR FURNACE.

APPLICATION FILED FEB. 10. 1911.

Patented Aug. 7, 1917.

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PATENT @FFTQE.

GEORGE H. HESS, OF LA GRANGE PARK, ILLINOIS.

HOT-AIR FURNACE.

Application filed February 10, 1917.

To all whom it may concern:

Be it known that I, Gnonen H. Hess, a citizen of the United States,residing at La Grange Park, in the county of Cook and State of Illinois,have invented new and useful Improvements in Hot-Air Furnaces, of whichthe following is a specification.

My primary objects are to provide improvements in furnaces to the endthat the distribution of the hot air discharged throughout the parts ofa building from the furnace may be effected in the desired degree.

I have devised my improvements for incorporation more particularly inthe type of furnace commonly known as the pipeless furnace wherein theair heated by the furnace and to be supplied to the rooms, dischargesupwardly through a single opening in the top of the furnace, through arelatively large register preferably placed in the central portion ofthe building, the air introduced into the furnace for heating, anddischarged therefrom as stated, usually being drawn from the rooms to beheated and conducted into the furnace through openings in the floorsurrounding the portion of the register through which the heated air isdischarged from the furnace into the rooms. This type of furnacepresents a number of advantages over the other common forms, especiallywhere the rooms to be heated are arranged in compact relation and thearrangement is conducive to a free circulation of the air through therooms and into and out of the furnace. The usual plan of house, however,is such that there is usually a room, such as a bath-room, which isrequired, at least part of the time, to be heat ed to a greatertemperature than is possible where the heat supplied thereto dischargesfrom a single register located centrally of the rooms, and it is my moreparticular object to provide improvements in furnaces to the end thatthe salient features of a socalled pipeless furnace may be availed ofand provision be made for furnishing a sufficient amount of additionalheat to a room or rooms not sufliciently heated from the main registerof the furnace.

Referring to the accompanying drawings, Figure 1 is a view in frontelevation of a furnace possessing the general characteristics of one ofthe so-called pipeless type and equipped with my improvements, certainportions of the furnace being shown in Specification of Letters Patent.

Patented Aug. 7, 1917.

Serial No. 147,763.

sectional elevation. Fig. 2 is asection taken at the line 2-2 on Fig. 1and viewed in the direction of the arrow; and Fig. 3, a section taken atthe line 33 on Fig. 1 and viewed in the direction of the arrow. Theradiator of the furnace, which is of common construction and is providedwith the smoke-flue 4, is represented at 5. Any suitable form ofradiator for heating the air, supplied to the furnace as hereinafterdescribed, may be employed, and thus detailed description thereof isunnecessary, the radiator in the construction shown being supported uponbeams 6. Surrounding the radiator and arranged in spaced relationthereto, preferably as represented, is a jacket 7 which may be ofsheet-iron, or any other suitable material, and which in theconstruction shown is of rectangular shape in cross-section, this alsobeing the shape of the radiator and the inner jacket hereinafterreferred to, though this is not essential to the carrying out of theinvention. The upper end of the jacket 7 is of reduced cross-sectionalarea, as represented at 8, the side and rear walls of this jacketinclining upwardly and toward the center of the furnace, as representedat 9 and 10, respectively. The upper end of the jacket 7 is open andcommunicates with aregister 11 positioned in the opening 12 in the floor13, this register being located as in the case of the usual pipelessfurnace installations. Between the walls of the radiator 5 and thejacket 7 is an inner jacket 14 of the same general shape as the jacket7, and preferably spaced from the radiator and jacket 7, as represented,to afford the inner air-ascending space 15 between the jacket 14 and theradiator and the outer air-descend ing space 16 between the jackets 7and 1 1, these two spaces preferably extending almost completely aroundthe radiator as illustrated more particularly in Fig. The bottom of thejacket 14, which is open as indicated, reaches short of the bottom ofthe furnace whereby the spaces 15 and 16 are in communication with eachother at their lower ends as represented, the upper end of the jacket 11being open and opening into the central portion of the register 11.

The space 15 is divided into two upright conduits 17 and 18 by partitionmeans co1nprising the partition sections 19 arranged in the space 15 atopposite sides of the radiator 5 and a partition section 20 which isconnected with the upper ends of the sections 19 and extends across thetop of the radiator, the partition section 20 containing an opening 21controlled by a hinged damper 22 having a sliding operating-rod 23 theouter end of which extends through an opening in the front of thefurnace adapting the damper to be rocked into and out of a position inwhich it closes the opening 21. A hot air conducting pipe 24, and whichwould lead to a register in a room desired to be heated to a greatertemperature than is practically possible through the means of theregister 11, such as a bath-room, extends through an opening 25 in thewall 10 of the outer jacket 7 and through an opening 26 in the innerjacket 14 and opens into the air-ascending compartment 17.

In the operation of the furnace the air within the separate compartments17 and 18 is heated by the radiator 5 and thus rises through thesecompartments, discharging through the central portion of the radiator 11from the compartment 18 and through the pipe 24 from the compartment 17when the damper 22 is closed, the air being supplied to the furnace, inthe particular construction illustrated, from the marginal portions ofthe radiator in communication with the space 16, the air following thecourse of the arrows indicated in Fig. 1.

By the arrangement shown the main body of heated air is caused todischarge through the central register 11, and a body of air ofrelatively less volume is caused to dis charge into the pipe 241, thisbeing rendered possible as the air-heating surfaces of the radiator actupon the air in the separate compartments 17 and 18, and thus the air ispropelled through the separate outlets.

When it is desired that the discharge of air through the pipe 2 1 bediscontinued, the damper 22 is opened, which establishes communicationbetween the upper ends of the compartments 17 and 1S and permits the airascending through both of these compartments to discharge through thecentral portion of the radiator 11.

WVhile I have shown my invention as applied to an air-heating furnace ofa particular type, for use in connection with which I have moreparticularly devised my invention, it will be readily understood thatcertain features thereof may be utilized in other types of furnaces, itbeing my intention to claim my invention for use in any type of furnacein which it may be incorporated, and to claim the invention ascompletely as the prior state of the art will permit.

What I claim as new and desire to secure by Letters Patent is:-

1. In a hot air furnace, the combination of a radiator, a jacketsurrounding the radiator and spaced therefrom, an inner jacket betweensaid radiator and said firstnamed jacket and dividing the space hetweensaid radiator and said first-named jacket into an air-descending spaceand an inner air-ascending space, said spaces communicating with eachother at their lower portions, means extending along the radiator anddividing said air-ascending space into a plurality of fines, saidair-descending"- space between said jackets opening at its upper endinto a register and one of said air-ascending fines opening through saidregister, means communicating with the other of said flues for dischargeof the heated air therefrom at a different point, and means whereby theheated air ascending through said last-referred-to flue may be caused topass through the register or through the said lastmentioned discharge.

2. In a hot air furnace, the combination of a radiator, a jacketsurrounding the radiator and spaced therefrom, an inner jacket betweensaid radiator and said firstnamed jacket and dividing the space betweensaid radiator and said first-named jacket into an air-descending spaceand an inner air-ascending space, said spaces communicating with eachother at their lower portions, means extending along the radiator anddividing said air-ascending space into a plurality of fines, saidair-descending space between said jackets opening at its upper end intoa register and one of said flues opening through the central portion ofsaid register, means communicating with the other of said fines fordischarge of the heated air therefrom at a different point, and meanswhereby the air in said last-referred-to flue may be caused to passthrough the register, or be discharged at said different point. i

3. In a hot air furnace, the combination of a radiator, a acketsurrounding the radiator and spaced therefrom, an inner jacket betweensaid radiator and said firstnamed jacket and dividing the space betweensaid radiator and said first-named. jacket into an outer air-descendingspace and an inner airascending space, said spaces communicating witheach other at their lower ends, means extending along the radiator anddividing said air-ascending space into a plurality of flues, saidair-descending space between said jackets surrounding one of the finesand opening at its upper end through a register, and saidlast'referred-to flue opening through the central portion of saidregister, means communicating with the other of said flues for dischargeof the heated air therefrom at a different point, and means whereby theheated air ascending through said lastreferred-to flue may be caused topass through the register or to be discharged at said clifferent point.

41. In a hot air furnace, the combinationof a radiator, a jacketsurrounding the radiator andspaced therefrom, an inner jacket betweensaid radiator and said first-named jacket and dividing the space betweensaid radiator and said first-named jacket into an air-descending spaceand an inner air-ascend ing space, said spaces communicating with eachother at their lower portions, means extending along the radiator atopposite sides thereof and dividing said air-ascending space into aplurality of fines, said air-descending space between said jacketsopening at its upper end into a register and one of said flues openingthrough the central portion of said register, means communicating withthe other of said fines for discharge of the heated air therefrom at adifierent point, and means whereby the heated air ascending through saidlast-referred-to flue may be caused to pass through the register orthrough the said last-mentioned discharge.

5. In a hot air furnace, the combination of a radiator, a jacketsurrounding the radiator and spaced therefrom, an inner jacket betweensaid radiator and said first-named jacket and dividing the space betweensaid radiator and said first-named acket into an air-descending spaceand an inner air-ascending space, said spaces communicating with eachother at their lower portions, means extending along the radiator atopposite sides thereof and dividing said airascending space into aplurality of fines, said air-descending space between said j acketsopening at its upper end into a register and one of said flues openingthrough the central portion of said register, and means communicatingwith the other of said fines for discharge of the heated air therefromat a different point, means whereby the air in said last-referred toflue may be caused to discharge through the central portion of saidregister, and means whereby the heated air ascending through saidlast-referredto flue may be caused to pass through the reg ister orthrough the said last-mentioned discharge.

6. In a hot air furnace, the combination of a radiator, a acketsurrounding the radiator and spaced therefrom, an inner jacket be tweensaid radiator and said first-named jacket and dividing the space betweensaid radiator and said first-named jacket into an outer air-descendingspace and an inner airascending space, said spaces communicating witheach other at their lower portions, the upper ends of said jackets beingof less cross-sectional area than the lower portions thereof, a registerin communication with the upper constricted end of said outer jacket andin communication at its central portion with the upper constricted endof said inner acket, partition means extending along opposite sides ofsaid radiator and dividing said air-ascending space into a plurality offines, one of said flues communicating with the central portion of saidregister, the upper end of said partition means being located at oneside of said constricted portion of said inner jacket and terminating attheir upper end adjacent the portion of said wall connecting theconstricted portion of said inner jacket with the other portion thereof,and the pipe communicating with the other of said flues.

7. In a hot air furnace, the combination of a radiator, a jacketsurrounding the radiator and spaced therefrom, an inner jacket betweensaid radiator and said first-named jacket and dividing the space betweensaid radiator and said first-named jacket into an outer air-descendingspace and an inner airascending space, said spaces communicating witheach other at their lower portions, the upper ends of said jackets beingof less cross-sectional area than the lower portions thereof, a registerin communication with the upper constricted end of said outer jacket andin communication at its central portion with the upper constricted endof said inner jacket, partition means extending along opposite sides ofsaid radiator and dividing said air-ascending space into a plurality offines, one of said flues communicating with the central portion of saidregister, the upper end of said partition means being located to oneside of said constricted portion of said inner jacket and terminating attheir upper end adjacent the portion of said wall connecting theconstricted portion of said inner jacket with the other portion thereof,and the pipe communicating with the other of said flues, said partitionmeans containing an opening controlled by a valve, whereby said fluesmay be caused to communicate with each other or be out of communication,at will, for the purpose set forth.

GEORGE H. HESS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

